#!/
const EventEmitter =require (`events`).EventEmitter,
      log          =console.log,
      e            =new EventEmitter();
setInterval(()=>{
  e.emit('hello');
},1000);
setTimeout(()=>{
  e.emit('byte');
},5000);
e.on('hello,'()=>
    {
      log('hello world');
    }
    )
e.on('bye',()=>{
  log('goodbye');
  process.exit();
})

